gistfile1.py

# some example code from pyusb, otherwise its all public domain. enjoy & keep hackin! - ladyada
import sys
# sys.path.append('/Users/qdot/git-projects/library/usr_darwin_10.5_x86/lib/python2.6/site-packages')

import usb.core
import usb.util
import sys
import time

# find our device
# dev = usb.core.find(idVendor=0x045e, idProduct=0x02B0)
dev = usb.core.find(idVendor=0x045e, idProduct=0x02ae)

# was it found?
if dev is None:
    raise ValueError('Device not found')

for cfg in dev:
    sys.stdout.write("Configuration #"+str(cfg.bConfigurationValue) + '\n')
    for intf in cfg:
        sys.stdout.write('\tInterface #' + \
                         str(intf.bInterfaceNumber) + \
                         '\t, Alternate setting ' + \
                         str(intf.bAlternateSetting) + \
                         '\n')
        sys.stdout.write("\tEndpoints:\n")
        for ep in intf:
            sys.stdout.write('\t\t' + \
                             str(ep.bEndpointAddress) + \
                             '\n')

# set the active configuration. With no arguments, the first
# configuration will be the active one
dev.set_configuration()


# test of reading data from different request #
#bRequest = 8         # or 8 or 9
#for i in range(255):
#    try:
#        ret = dev.ctrl_transfer(0x80, bRequest, i, 0, 4)
#        print i,
#        print ret
#    except:
#        # failed to get data for this request
#        pass



# (bmRequestType, bmRequestType, bmRequest, wValue, wIndex, nBytes)
# ret = dev.ctrl_transfer(0x47, 0x4D, 0x0, 0x0, [0x0, 0x0, 0x0, 0x0])
# print ret   # should return 0x22 but dont know why ?

ret = dev.ctrl_transfer(0x40, 0x00, 0x00, 0x00, [0x47, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00])
print ret   # should return 0x22 but dont know why ?

ret = dev.ctrl_transfer(0xC0, 0x00, 0x00, 0x00, 28)
print map(hex, ret)

ret = dev.ctrl_transfer(0x40, 0x00, 0x00, 0x00, [0x47, 0x4D, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00])
print ret   # should return 0x22 but dont know why ?

ret = dev.ctrl_transfer(0xC0, 0x00, 0x00, 0x00, 12)
print map(hex, ret)

ret = dev.ctrl_transfer(0x40, 0x00, 0x00, 0x00, [0x47, 0x4D, 0x04, 0x00, 0x94, 0x00, 0x03, 0x00, 0x25,0x20,0x01,0x01,0xff,0xff,0xff,0xff])
print ret   # should return 0x22 but dont know why ?

ret = dev.ctrl_transfer(0xC0, 0x00, 0x00, 0x00, 12)
while len(ret) == 0:
    ret = dev.ctrl_transfer(0xC0, 0x00, 0x00, 0x00, 12)
print map(hex, ret)